CVE-2026-8261 — CVE & Security Advisory Radar

🎯 CVE-2026-8261 🧪 PoC 🇪🇺 EUVD

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CVE-2026-8261 | A vulnerability was determined in Squirrel up to 3.2. This affects the function SQFunctionProto::Load of the file squirrel/sqobject.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

A vulnerability was determined in Squirrel up to 3.2. This affects the function SQFunctionProto::Load of the file squirrel/sqobject.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Klassifikation & Betroffenheit:

n/a Squirrel 3.2Squirrel 3.0Squirrel 3.1

Improper Restriction of Operations within the Bounds of a Memory Buffer 🎯 High

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

🛡️ Empfohlene Mitigation: Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow prot…

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-10 · Buffer Overflow via Environment Variable… (High) CAPEC-14 · Client-side Injection-induced Buffer Ove… (High) CAPEC-24 · Filter Failure through Buffer Overflow (High) CAPEC-42 · MIME Conversion (High) CAPEC-44 · Overflow Binary Resource File (Very High) CAPEC-45 · Buffer Overflow via Symbolic Links (High) CAPEC-100 · Overflow Buffers (Very High) CAPEC-123 · Buffer Manipulation (Very High)

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2026-52486 6.6 CVE-2025-70342 6.6 CVE-2025-65855 6.6 CVE-2025-65293 6.6 CVE-2025-55582 6.6

📰 Eigene Berichterstattung: ➔ CVE-2026-82617 | Apache OpenNLP up to 2.5.11/3.0.0-M5 RegexNameFinder RegexNameF

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2026

Veröffentlicht 05/2026

Heute 19.09.

CVSS-Vektor-Analyse: 5.1

AV · Angriffsvektor Lokal

AC · Komplexität Gering

PR · Privilegien Keine

UI · Interaktion Keine

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Veröffentlicht:11.05.2026

Aktualisiert:23.07.2026 20:10

Assigner (CNA):VulDB

EUVD-ID:EUVD-2026-29017

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

CWE-119: Memory Corruption ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

Tier	2026-08-30	2026-09-18
≥90 %	0	0
≥50 %	0	0
≥10 %	0	0
<10 %	300	300

Datenquellen & Methodik: Primärquelle ist die EUVD der ENISA (laufender Datenbank-Sync, alle 15 Minuten), abgeglichen mit dem CISA-KEV-Katalog und der NVD — Detail-Dossiers reichern fehlende Felder live per NVD an — mit Fallback auf CIRCL vulnerability-lookup (EU/Non-Profit, aggregiert CVE-, GitHub- und OSV-Advisories). Der CISA-KEV-Katalog (Known Exploited Vulnerabilities, ~1.700 aktiv ausgenutzte Schwachstellen) wird bei jedem Sync vollständig neu geladen und kreuzreferenziert — filterbar über die KEV-Pille. CVSS 3.1 wird nach Ampel-Logik aus Verteidigersicht dekodiert; EPSS bezeichnet die 30-Tage-Exploit-Wahrscheinlichkeit (FIRST.org).

🇪🇺 ENISA EUVD 🇺🇸 NVD ⚠️ CISA KEV ⚡ EPSS

EPSS

26.2%

CVE-2026-82617 🌐 Netzwerk (Remote) 🔓 Keine Authentifizierung nötig

Apache

CVE-2026-82617 | Apache OpenNLP up to 2.5.11/3.0.0-M5 RegexNameFinder RegexNameFinderFactory.java RegexNameFinder.find String[] resource consumption

A vulnerability, which was classified as problematic, was found in Apache OpenNLP up to 2.5.11/3.0.0-M5. This impacts the function RegexNameFinder.find of the file RegexNameFinderFactory.java of the component RegexNameFinder. Such manipulat

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: ModSecurity WAF-Regeln aktivieren und HTTP/2-Konfiguration überprüfen.

19.09.2026

🛡️ Details ➔

EPSS

15%

CVE-2026-8261 💻 Lokal 🔓 Keine Authentifizierung nötig

n/a

CVE-2026-8261 | A vulnerability was determined in Squirrel up to 3.2. This affects the function SQFunctionProto::Load of the file squirrel/sqobject.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

CWE-119: Memory Corruption ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

11.05.2026

🛡️ Details ➔

Zero-Day & Vulnerability Intelligence Hub

CVE-2026-82617 | Apache OpenNLP up to 2.5.11/3.0.0-M5 RegexNameFinder RegexNameFinderFactory.java RegexNameFinder.find String[] resource consumption